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//
//	Purpose: Definition of CIDispatchLite.
 
#pragma once

//<summary>
// Lightweight implementation of IDispatch,  returns E_NOTIMPL for all IDispatch Methods
// and may be successfully queried for IUnknown and IDispatch only. Any required methods
// may be overridden in an inheriting class.
//</summary>
//<remarks>
// The principal purpose of this class is as a base to MSHTML event handlers which respond
// to Invoke called with DISPID_VALUE. There is no CoClass - you must provide a factory
// method in an inheriting class.
//</remarks>
class CIDispatchLite : public IDispatch
{
public:
	// IUnknown
	virtual unsigned long STDMETHODCALLTYPE AddRef(void);
	virtual unsigned long STDMETHODCALLTYPE Release(void);
	STDMETHOD(QueryInterface)(REFIID riid, void __RPC_FAR *__RPC_FAR *ppvObject);

	// IDispatch
	STDMETHOD(GetTypeInfoCount)(UINT* pctinfo);
	STDMETHOD(GetTypeInfo)(UINT itinfo, LCID lcid, ITypeInfo **pptinfo);
	STDMETHOD(GetIDsOfNames)(REFIID riid, LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgdispid);
	STDMETHOD(Invoke)(DISPID dispidMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pdp, VARIANT *pvResult, EXCEPINFO *pexcepinfo, UINT *puArgErr);

protected:
	// Protected construction and destruction.
	CIDispatchLite();
	virtual ~CIDispatchLite();

private:
	// Explicitly forbidden operations.
	CIDispatchLite(const CIDispatchLite &rhs);
	CIDispatchLite &operator=(const CIDispatchLite &rhs);

	// Object reference count.
	volatile long m_nRefCount;
};
